The High-Bandwidth Digital Copy Protection (HDCP) version 2.2 or higher is still believed to be secure today, but there are signs that pirates have found a way to bypass the protection. Earlier this year the first 4K Netflix leak surfaced. After that it went quiet. However, a few days ago something changed, as many more releases started to appear online.

Source : Pirates Can Now Rip 4K Content From Netflix and Amazon – TorrentFreak